/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/unroll-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:16:43,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:16:43,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:16:43,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:16:43,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:16:43,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:16:43,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:16:43,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:16:43,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:16:43,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:16:43,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:16:43,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:16:43,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:16:43,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:16:43,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:16:43,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:16:43,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:16:43,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:16:43,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:16:43,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:16:43,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:16:43,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:16:43,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:16:43,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:16:43,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:16:43,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:16:43,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:16:43,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:16:43,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:16:43,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:16:43,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:16:43,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:16:43,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:16:43,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:16:43,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:16:43,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:16:43,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:16:43,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:16:43,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:16:43,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:16:43,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:16:43,710 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 11:16:43,747 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:16:43,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:16:43,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 11:16:43,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 11:16:43,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:16:43,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:16:43,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:16:43,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:16:43,750 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:16:43,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:16:43,750 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:16:43,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:16:43,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:16:43,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:16:43,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:16:43,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:16:43,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:16:43,751 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:16:43,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:16:43,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:16:43,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:16:43,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:16:43,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:16:43,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:16:43,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:16:43,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:16:43,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:16:43,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:16:43,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:16:43,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:16:43,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:16:43,753 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:16:43,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 11:16:43,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:16:43,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:16:44,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:16:44,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:16:44,027 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:16:44,027 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:16:44,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-2.wvr.c [2022-09-16 11:16:44,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8defb6bc/f96c1463c5dc428c8cb32cb2562fdac2/FLAG6a407a20f [2022-09-16 11:16:44,539 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:16:44,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-2.wvr.c [2022-09-16 11:16:44,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8defb6bc/f96c1463c5dc428c8cb32cb2562fdac2/FLAG6a407a20f [2022-09-16 11:16:44,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8defb6bc/f96c1463c5dc428c8cb32cb2562fdac2 [2022-09-16 11:16:44,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:16:44,913 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:16:44,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:16:44,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:16:44,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:16:44,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:16:44" (1/1) ... [2022-09-16 11:16:44,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@154df677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:44, skipping insertion in model container [2022-09-16 11:16:44,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:16:44" (1/1) ... [2022-09-16 11:16:44,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:16:44,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:16:45,108 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-2.wvr.c[2428,2441] [2022-09-16 11:16:45,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:16:45,118 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:16:45,134 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-2.wvr.c[2428,2441] [2022-09-16 11:16:45,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:16:45,147 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:16:45,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45 WrapperNode [2022-09-16 11:16:45,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:16:45,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:16:45,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:16:45,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:16:45,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (1/1) ... [2022-09-16 11:16:45,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (1/1) ... [2022-09-16 11:16:45,204 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 136 [2022-09-16 11:16:45,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:16:45,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:16:45,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:16:45,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:16:45,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (1/1) ... [2022-09-16 11:16:45,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (1/1) ... [2022-09-16 11:16:45,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (1/1) ... [2022-09-16 11:16:45,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (1/1) ... [2022-09-16 11:16:45,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (1/1) ... [2022-09-16 11:16:45,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (1/1) ... [2022-09-16 11:16:45,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (1/1) ... [2022-09-16 11:16:45,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:16:45,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:16:45,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:16:45,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:16:45,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (1/1) ... [2022-09-16 11:16:45,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:16:45,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:16:45,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:16:45,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:16:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:16:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:16:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:16:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:16:45,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:16:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:16:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:16:45,324 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:16:45,405 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:16:45,406 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:16:45,757 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:16:45,769 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:16:45,769 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-16 11:16:45,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:16:45 BoogieIcfgContainer [2022-09-16 11:16:45,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:16:45,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:16:45,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:16:45,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:16:45,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:16:44" (1/3) ... [2022-09-16 11:16:45,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af93ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:16:45, skipping insertion in model container [2022-09-16 11:16:45,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:16:45" (2/3) ... [2022-09-16 11:16:45,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af93ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:16:45, skipping insertion in model container [2022-09-16 11:16:45,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:16:45" (3/3) ... [2022-09-16 11:16:45,781 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.c [2022-09-16 11:16:45,788 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 11:16:45,795 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:16:45,795 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-09-16 11:16:45,795 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:16:45,864 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 11:16:45,892 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 167 places, 174 transitions, 364 flow [2022-09-16 11:16:45,925 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 189 states, 186 states have (on average 1.596774193548387) internal successors, (297), 188 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:45,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:16:45,944 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@22f55ffe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:16:45,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-09-16 11:16:45,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 186 states have (on average 1.596774193548387) internal successors, (297), 188 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:45,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 11:16:45,952 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:16:45,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:16:45,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-16 11:16:45,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:16:45,957 INFO L85 PathProgramCache]: Analyzing trace with hash 164611527, now seen corresponding path program 1 times [2022-09-16 11:16:45,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:16:45,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679464532] [2022-09-16 11:16:45,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:16:45,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:16:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:16:46,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:16:46,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:16:46,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679464532] [2022-09-16 11:16:46,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679464532] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:16:46,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:16:46,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:16:46,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109846559] [2022-09-16 11:16:46,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:16:46,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:16:46,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:16:46,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:16:46,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:16:46,204 INFO L87 Difference]: Start difference. First operand has 189 states, 186 states have (on average 1.596774193548387) internal successors, (297), 188 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:46,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:16:46,308 INFO L93 Difference]: Finished difference Result 322 states and 504 transitions. [2022-09-16 11:16:46,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:16:46,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-09-16 11:16:46,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:16:46,324 INFO L225 Difference]: With dead ends: 322 [2022-09-16 11:16:46,324 INFO L226 Difference]: Without dead ends: 71 [2022-09-16 11:16:46,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:16:46,330 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 45 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:16:46,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 287 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:16:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-09-16 11:16:46,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2022-09-16 11:16:46,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 67 states have (on average 1.0298507462686568) internal successors, (69), 68 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2022-09-16 11:16:46,357 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 57 [2022-09-16 11:16:46,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:16:46,357 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2022-09-16 11:16:46,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:46,358 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2022-09-16 11:16:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-09-16 11:16:46,359 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:16:46,360 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:16:46,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:16:46,360 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-16 11:16:46,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:16:46,361 INFO L85 PathProgramCache]: Analyzing trace with hash 220006458, now seen corresponding path program 1 times [2022-09-16 11:16:46,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:16:46,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696854009] [2022-09-16 11:16:46,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:16:46,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:16:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:16:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:16:46,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:16:46,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696854009] [2022-09-16 11:16:46,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696854009] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:16:46,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026439077] [2022-09-16 11:16:46,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:16:46,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:16:46,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:16:46,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:16:46,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 11:16:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:16:46,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:16:46,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:16:46,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:16:46,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:16:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:16:46,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026439077] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:16:46,754 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:16:46,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 11:16:46,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618964990] [2022-09-16 11:16:46,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:16:46,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 11:16:46,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:16:46,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 11:16:46,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 11:16:46,757 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:46,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:16:46,920 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2022-09-16 11:16:46,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:16:46,922 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-09-16 11:16:46,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:16:46,929 INFO L225 Difference]: With dead ends: 100 [2022-09-16 11:16:46,929 INFO L226 Difference]: Without dead ends: 100 [2022-09-16 11:16:46,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:16:46,931 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 44 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:16:46,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 272 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:16:46,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-09-16 11:16:46,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 95. [2022-09-16 11:16:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 93 states have (on average 1.043010752688172) internal successors, (97), 94 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:46,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 97 transitions. [2022-09-16 11:16:46,942 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 97 transitions. Word has length 66 [2022-09-16 11:16:46,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:16:46,947 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 97 transitions. [2022-09-16 11:16:46,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:46,948 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 97 transitions. [2022-09-16 11:16:46,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-09-16 11:16:46,953 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:16:46,953 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:16:46,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 11:16:47,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:16:47,171 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-16 11:16:47,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:16:47,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1769734065, now seen corresponding path program 1 times [2022-09-16 11:16:47,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:16:47,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466903681] [2022-09-16 11:16:47,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:16:47,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:16:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:16:47,284 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:16:47,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:16:47,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466903681] [2022-09-16 11:16:47,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466903681] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:16:47,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364215268] [2022-09-16 11:16:47,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:16:47,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:16:47,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:16:47,292 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:16:47,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 11:16:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:16:47,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:16:47,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:16:47,442 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:16:47,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:16:47,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364215268] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:16:47,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:16:47,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:16:47,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517097645] [2022-09-16 11:16:47,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:16:47,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:16:47,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:16:47,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:16:47,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:16:47,444 INFO L87 Difference]: Start difference. First operand 95 states and 97 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:16:47,494 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2022-09-16 11:16:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:16:47,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-09-16 11:16:47,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:16:47,501 INFO L225 Difference]: With dead ends: 94 [2022-09-16 11:16:47,501 INFO L226 Difference]: Without dead ends: 94 [2022-09-16 11:16:47,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:16:47,505 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 10 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:16:47,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 265 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:16:47,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-09-16 11:16:47,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-09-16 11:16:47,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.010752688172043) internal successors, (94), 93 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:47,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2022-09-16 11:16:47,512 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 67 [2022-09-16 11:16:47,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:16:47,512 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2022-09-16 11:16:47,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:47,513 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2022-09-16 11:16:47,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-09-16 11:16:47,514 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:16:47,514 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:16:47,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 11:16:47,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-09-16 11:16:47,721 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-09-16 11:16:47,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:16:47,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2109886599, now seen corresponding path program 2 times [2022-09-16 11:16:47,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:16:47,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451687015] [2022-09-16 11:16:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:16:47,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:16:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:16:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:16:47,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:16:47,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451687015] [2022-09-16 11:16:47,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451687015] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:16:47,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901027534] [2022-09-16 11:16:47,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 11:16:47,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:16:47,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:16:47,858 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:16:47,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 11:16:47,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-16 11:16:47,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 11:16:47,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-16 11:16:47,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:16:48,081 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 11:16:48,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:16:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-09-16 11:16:48,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901027534] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:16:48,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:16:48,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-09-16 11:16:48,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770681324] [2022-09-16 11:16:48,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:16:48,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:16:48,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:16:48,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:16:48,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:16:48,230 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand has 18 states, 17 states have (on average 8.117647058823529) internal successors, (138), 18 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:48,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:16:48,610 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2022-09-16 11:16:48,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-09-16 11:16:48,611 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 8.117647058823529) internal successors, (138), 18 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-09-16 11:16:48,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:16:48,611 INFO L225 Difference]: With dead ends: 106 [2022-09-16 11:16:48,611 INFO L226 Difference]: Without dead ends: 0 [2022-09-16 11:16:48,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 175 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=419, Invalid=1063, Unknown=0, NotChecked=0, Total=1482 [2022-09-16 11:16:48,613 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 196 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:16:48,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 435 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:16:48,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-09-16 11:16:48,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-09-16 11:16:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:48,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-09-16 11:16:48,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 93 [2022-09-16 11:16:48,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:16:48,614 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-16 11:16:48,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 8.117647058823529) internal successors, (138), 18 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:16:48,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-09-16 11:16:48,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-09-16 11:16:48,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-09-16 11:16:48,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-09-16 11:16:48,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-09-16 11:16:48,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-09-16 11:16:48,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 11:16:48,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:16:48,844 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-09-16 11:16:48,846 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:16:48,846 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:16:48,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:16:48 BasicIcfg [2022-09-16 11:16:48,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:16:48,848 INFO L158 Benchmark]: Toolchain (without parser) took 3935.43ms. Allocated memory was 180.4MB in the beginning and 230.7MB in the end (delta: 50.3MB). Free memory was 151.0MB in the beginning and 111.5MB in the end (delta: 39.6MB). Peak memory consumption was 90.4MB. Max. memory is 8.0GB. [2022-09-16 11:16:48,848 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 180.4MB. Free memory was 135.2MB in the beginning and 135.1MB in the end (delta: 122.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:16:48,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.87ms. Allocated memory was 180.4MB in the beginning and 230.7MB in the end (delta: 50.3MB). Free memory was 150.7MB in the beginning and 199.5MB in the end (delta: -48.8MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. [2022-09-16 11:16:48,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.90ms. Allocated memory is still 230.7MB. Free memory was 199.5MB in the beginning and 197.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:16:48,849 INFO L158 Benchmark]: Boogie Preprocessor took 38.47ms. Allocated memory is still 230.7MB. Free memory was 197.4MB in the beginning and 195.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:16:48,850 INFO L158 Benchmark]: RCFGBuilder took 528.16ms. Allocated memory is still 230.7MB. Free memory was 195.8MB in the beginning and 180.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-09-16 11:16:48,850 INFO L158 Benchmark]: TraceAbstraction took 3072.84ms. Allocated memory is still 230.7MB. Free memory was 179.6MB in the beginning and 111.5MB in the end (delta: 68.1MB). Peak memory consumption was 69.6MB. Max. memory is 8.0GB. [2022-09-16 11:16:48,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 180.4MB. Free memory was 135.2MB in the beginning and 135.1MB in the end (delta: 122.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 233.87ms. Allocated memory was 180.4MB in the beginning and 230.7MB in the end (delta: 50.3MB). Free memory was 150.7MB in the beginning and 199.5MB in the end (delta: -48.8MB). Peak memory consumption was 8.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.90ms. Allocated memory is still 230.7MB. Free memory was 199.5MB in the beginning and 197.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.47ms. Allocated memory is still 230.7MB. Free memory was 197.4MB in the beginning and 195.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 528.16ms. Allocated memory is still 230.7MB. Free memory was 195.8MB in the beginning and 180.6MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3072.84ms. Allocated memory is still 230.7MB. Free memory was 179.6MB in the beginning and 111.5MB in the end (delta: 68.1MB). Peak memory consumption was 69.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 98]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 212 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 295 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 295 mSDsluCounter, 1259 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1005 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 264 IncrementalHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 256 mSDtfsCounter, 264 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 440 GetRequests, 366 SyntacticMatches, 5 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred in iteration=0, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 509 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 1193 SizeOfPredicates, 12 NumberOfNonLiveVariables, 424 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 123/266 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:16:48,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...